A Commencement Notice is required to give notice to Building Control Authorities of the erection of such buildings, or classes of buildings, or the carrying out of such works, or classes of works, as may be specified in the regulations. The Building Control (Amendment) Regulations SI 9 of 2014 recommends the Building Control Management System (BCMS) site as the preferred means of electronic building control administration.
Building Control Regulations provide for matters of procedure, administration and control for the purposes of securing the implementation of the requirements of the Building Regulations and of demonstrating how compliance with such requirements has been achieved in relation to the building or works concerned.
To apply for a Commencement Notice each party (owner, designer, builder and assigned certifier) to the notice must first register with the BCMS.
The following guides will also be of use:
Basic guide, what commencement notice should I submit? (pdf)
Flowchart to establish if a Commencement Notice is required. (pdf)
National Building Control Office YouTube Channel